Effect of La[sub 2]Zr[sub 2]O[sub 7] on Interfacial Resistance in Solid Oxide Fuel Cells

The impact of (LZO) on interfacial resistance at the /yttria-stabilized zirconia interface was studied upon isothermal sintering at for 2–25 h. Quantification of triple phase boundary length was performed by applying focused ion beam/scanning electron microscopy (FIB/SEM) serial-sectioning techniques and classical stereology. Electrochemical impedance spectroscopy was used to characterize the . The effect of LZO formation on microstructural models for was analyzed with respect to previous works that did not include this effect. LZO formation modifies the TPB length, rapidly increases , and needs to be controlled in analytical microstructural models.